Buscopan is an antispasmodic medicine which is taken to relieve cramps in the stomach, intestines or bladder. In particular, it helps to ease bloating & the spasm-type pain that can be associated with irritable bowel syndrome & diverticular disease. It works by relaxing some of the muscles in your gastrointestinal & urinary systems. Buscopan is known as an anticholinergic medicine. It relieves the pain of stomach & bowel cramps by helping your digestive system to relax. Buscopan IBS Relief Tablets belong to a group of medicines called antispasmodics, which are used to relieve painful colicky aching & spasm in the bowel associated with Irritable Bowel Syndrome.